ABC- Always Be Corpselancing.
Finally hit 70 with my seasonal necro - the wardrobe has been a blessing to let me quickly change between my low level experience gain set (Cain + Born + Leoric’s Helm) and my high level set to take out bosses.
Favourite thing coming back to this after so long are all the new areas and monsters I’ve never seen before - I would be happy if Blizzard just kept adding new areas like the Shrouded Moor to the game forever.